GB/T 14666-2025 Chinese PDF (GB /T14666-2025) GB 31604.61-2025 English versions: GB/T 20032-2024

English versions: GB/T 20032-2024

English versions: GB 45669

4-2024_Chinese: Chemical analysis methods of mixed rare earth oxide of ion-absorption rare earth ore - Part 4: Determination of iron trioxide content - Inductively coupled plasma atomic emission spectrometry (Chinese: 离子型稀土矿混合稀土氧化物化学分析方法 第4部分：三氧化二铁含量的测定 电感耦合等离子体发射光谱法)

GB/T 16605-2024_Chinese: Regenerated cellulose filament fabrics (Chinese: 再生纤维素丝织物)

GB/T 13000-2025_Chinese: Information technology - Universal coded character set(UCS) (Chinese: 信息技术 通用编码字符集（UCS）)

GB/T 14666-2025 Chinese PDF (GB /T14666-2025) GB 31604.61-2025 English versions: GB/T 20032-2024GB T 14666 2025_Chinese: Terms for analytical chemistry (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 14666 2025